feat(release): added semantic-release

.npmrc

@@ -0,0 +1 @@
+//registry.npmjs.org/:_authToken=${NPM_TOKEN}

condition.js

@@ -0,0 +1,41 @@
+'use strict'
+
+var semver = require('semver')
+
+function conditionNodeVersion (pluginConfig, config, callback) {
+  pluginConfig = pluginConfig || {}
+  config = config || {}
+
+  function isVerbose () {
+    return pluginConfig.verbose ||
+      pluginConfig.debug ||
+      config.verbose ||
+      config.debug
+  }
+
+  if (isVerbose()) {
+    console.log('condition plugin config', pluginConfig)
+    console.log('condition config environment', config.env)
+    console.log('condition config options', config.options)
+    // console.log('node version', process.versions.node)
+  }
+
+  function fail (message) {
+    return callback(new Error(message))
+  }
+
+  // if (typeof pluginConfig.node !== 'string') {
+  //   return fail('Missing node version in the config')
+  // }
+
+  // if (!semver.satisfies(process.versions.node, pluginConfig.node)) {
+  //   return fail('Only allowed to publish from Node ' +
+  //     pluginConfig.node + ' not from ' + process.versions.node)
+  // }
+
+  console.log('ok to publish from this version of Node', pluginConfig.node)
+
+  callback(null)
+}
+
+module.exports = conditionNodeVersion